EP2350383A4 - Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency - Google Patents

Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency

Info

Publication number
EP2350383A4
EP2350383A4 EP09823903.1A EP09823903A EP2350383A4 EP 2350383 A4 EP2350383 A4 EP 2350383A4 EP 09823903 A EP09823903 A EP 09823903A EP 2350383 A4 EP2350383 A4 EP 2350383A4
Authority
EP
European Patent Office
Prior art keywords
dewatering
cellulose pulp
improved
efficiency
dewatering efficiency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09823903.1A
Other languages
German (de)
French (fr)
Other versions
EP2350383A1 (en
Inventor
Rickard Andersson
Patrik Pettersson
Joergen Lundberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Publication of EP2350383A1 publication Critical patent/EP2350383A1/en
Publication of EP2350383A4 publication Critical patent/EP2350383A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
EP09823903.1A 2008-10-27 2009-10-23 Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency Withdrawn EP2350383A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0802285A SE533737C2 (en) 2008-10-27 2008-10-27 Apparatus and method for improved drainage efficiency
PCT/SE2009/051215 WO2010050883A1 (en) 2008-10-27 2009-10-23 Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency

Publications (2)

Publication Number Publication Date
EP2350383A1 EP2350383A1 (en) 2011-08-03
EP2350383A4 true EP2350383A4 (en) 2013-09-18

Family

ID=42129056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09823903.1A Withdrawn EP2350383A4 (en) 2008-10-27 2009-10-23 Apparatus and method for dewatering cellulose pulp with improved dewatering efficiency

Country Status (5)

Country Link
EP (1) EP2350383A4 (en)
CN (1) CN102197175A (en)
CA (1) CA2737310A1 (en)
SE (1) SE533737C2 (en)
WO (1) WO2010050883A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108660827A (en) * 2018-07-26 2018-10-16 南通新源特种纤维有限公司 A kind of production method of Folium Arundinis donacis subbundle and special rubbing pressing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263598A (en) * 1963-04-03 1966-08-02 Svenska Cellulosa Ab Apparatus for dewatering pulp
US3980518A (en) * 1974-03-04 1976-09-14 Sunds Aktiebolag Device for liquid-treating a running fiber web, including an arc-shaped duct
US5902456A (en) * 1994-12-12 1999-05-11 Sunds Defibrator Industries Ab Dewatering apparatus
US6660161B2 (en) * 2000-05-05 2003-12-09 Metso Paper, Inc. Dewatering device
WO2008051157A1 (en) * 2006-10-27 2008-05-02 Metso Paper, Inc. Press washer comprising separation of filtrates
WO2009075643A1 (en) * 2007-12-13 2009-06-18 Metso Paper, Inc. An apparatus for washing and dewatering pulp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515543C2 (en) * 1998-11-06 2001-08-27 Valmet Fibertech Ab dewatering

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263598A (en) * 1963-04-03 1966-08-02 Svenska Cellulosa Ab Apparatus for dewatering pulp
US3980518A (en) * 1974-03-04 1976-09-14 Sunds Aktiebolag Device for liquid-treating a running fiber web, including an arc-shaped duct
US5902456A (en) * 1994-12-12 1999-05-11 Sunds Defibrator Industries Ab Dewatering apparatus
US6660161B2 (en) * 2000-05-05 2003-12-09 Metso Paper, Inc. Dewatering device
WO2008051157A1 (en) * 2006-10-27 2008-05-02 Metso Paper, Inc. Press washer comprising separation of filtrates
WO2009075643A1 (en) * 2007-12-13 2009-06-18 Metso Paper, Inc. An apparatus for washing and dewatering pulp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010050883A1 *

Also Published As

Publication number Publication date
CN102197175A (en) 2011-09-21
SE0802285A1 (en) 2010-04-28
EP2350383A1 (en) 2011-08-03
CA2737310A1 (en) 2010-05-06
SE533737C2 (en) 2010-12-21
SE0802285A2 (en) 2010-07-20
WO2010050883A1 (en) 2010-05-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20110527

AK Designated contracting states

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Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130819

RIC1 Information provided on ipc code assigned before grant

Ipc: D21C 9/18 20060101AFI20130812BHEP

Ipc: D21C 9/06 20060101ALI20130812BHEP

Ipc: B30B 9/20 20060101ALI20130812BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALMET TECHNOLOGIES, INC.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140318